I've just finished building a custom box for my car and am ready to install everything. However, I am unsure of which wire colors are which feeding the factory subs coming out of the small amp in the back-left (I do know that the Standard U.S. system's subwoofers under the seats are driven by that small amp, a measly 40W x 2... The other car speakers are driven off the MASK unit, for my car without Nav.). I know member Lenk had posted a schematic of sort on the postive and negative subwoofer wire colors for the Logic 7 setup, I think. I need these colors for the Standard U.S. audio setup. If anyone knows what they are, or how to get this information, this would be GREATLY appreciated. I don't want to have to take the seats out to get to the subs. Thanks.